GET-request

Perform a generic GET-request to a target server, storing the received data in a variable.

Required

• The device needs to be connected to the internet.

Additional inputs

• getURL: url of the server to send the request to
• getGroup: group to store the result in
• getKey: key to store the result as

Function exits

• On success: The request has been performed successfully, the server answered with 'ok'.
• On fail: The request has been performed successfully, the server answered with 'error'.
• On missing url: No target url has been provided.